TECHNIQUES OF DREDGING SYSTEM AND DREDGING SHIP FOR CRUSHED ROCK FOUNDATION SURFACE PREVIOUSLY INSTALLED IN DEEP PART OF OPEN SEA

摘要

To provide a dredging system that guarantees the dredging mass of a crushed rock foundation surface and improves work efficiency, and whose configuration is simple, easy to use and superior in a dredging effect.SOLUTION: A dredging suction head is connected to a dredging pipeline. The dredging pipeline is connected to a power member. The dredging suction head includes at least one ridge surface suction port and at least one ridge furrow suction port. All openings of the ridge furrow suction ports are lower than all openings of the ridge surface suction ports. A lifting mechanism is connected to the dredging suction head and is used for lifting the dredging suction head with respect to a crushed rock foundation surface. A moving mechanism is connected to the lifting mechanism and is used for moving the dredging suction head into a dredging range of the crushed rock foundation surface. The dredging suction head includes the ridge surface suction port and the ridge furrow suction port, and can simultaneously suck a silt on the top surface of a crushed rock ridge and a silt in a ridge furrow between two crushed rock ridges.SELECTED DRAWING: Figure 1